Sewing machine



March 7, 1939. E w MERRlCK 2,149,456

SEWING MACHINE Original Filed June C50, 1934 8 Sheets-Sheet l March 7, 1939. w MERR|CK 2,149,456

SEWING MACHINE Original Filed June 30, 1934 8 Sheets-Sheet 2 l nvenzow: Eank WMerz z'ck March 7, 1939. w MERRICK 2,149,456

SEWING MACHINE Original Filed June 50, 1934 8 Sheets-Sheet 4 as 223 I 252 March 7, 1939. F. w MERRICK 2,149,456

SEWING MACHINE 8 Sheets-Sheet 5 Original Filed June 50, 1934 A33 ani WMervok March 7, 1939. w mc 2,149,456

SEWING MACHINE March 7, 1939. F. w MERRICK 2,149,456

SEWING MACHINE Original Filed June 30, 1934 8 Sheets-Sheet 7 Inward/ ow: Rank: WMerna'cZ:

March 7, 1939. F. w. MERRICK 2,149,455

SEWING MACHINE Original Filed June 30, 1934 8 Sheets-Sheet 8 255 24 I nvewior:

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Patented 7, 1939 UNITED STATES PATENT OFFICE snwnm momma Original application June 30, 1934, Serial No.

733,182. -Divided and this application August 25, 1936, Serial No. 97,839

' 8 Claims. (c1. 112-47) This invention relates to sewing machines, and particularly to machines for sewing strips to sheet material. As illustrated herein, the machine is organized for sewing a strip located 'edgewise with respect to the marginal portion of an insole blank in the manufacture of insoles of the type disclosed in Letter Patent of the United States No. 2,078,337, granted April 27, 1937, upon my application of which this application is a division.

Objects of the invention are to enable strips to be attached to sheet material in upstanding relation thereto, and to facilitate the manufacture of insoles having lasting lips comprising strips se- 16 cured in upstanding relation thereto at a predetermined distance from their edges.

The invention comprises means for presenting a strip edgewise to a sheet, and stitch-forming mechanism operated to pass stitches through i the strip from edge to edge and through the sheet to secure the strip and sheet together. As illustrated, and as used in making insoles, the machine is provided with means for guiding the strip in predetermined location with respect to the edge 5 of an insole blank, and for presenting a strip and blank to the sewing mechanism so that the needle will pass edgewise through the strip and through the blank. As illustrated, means is provided for varying the position of the strip with respect to 'the edge of the blank. Also in the illustrated machine a movable intermittent grip device is provided for applying pressure intermittently to the strip to hold the strip while the needle is passing through'it and to release the strip after the needle has passed through it. This device is preferably operated, as illustrated, by the usual presser foot with which the machine is provided.

In the drawings, Fig. 1 is a plan of the top side of an insole with the attached upper securing strips according to the invention;

Figs. 2 and 2A are sections, on an enlarged scale, on the lines 22 and 2A-2A respectively of Fig- Fig. 23 illustrates an insole with a modified form of strip, and corresponds to a section on the line2--2ofFig.l;

Fig. 2C is a transverse cross-section of the strip according to Fig. 2b before it is applied to the insole;

Figs. 3 and 4 are sections on the line 22 of Fig. 1, illustrating steps performed in the method of making the shoe; Fig. 3A is a fragmentary section, corresponding to Fig. 3, showing the modified form of insole and strip according to Figs. 23 and 2C;

Fig. 5 is an elevation, with parts in section, of a machine for making the insole according to Figs. 1 and 2;

Fig. 6 is a section on the line H of Fig. 5;

Fig. 7 is a front elevation, on an enlarged scale, of the head of the machine shown at the upper left hand comer of Fig. 5;

Fig. 8 is a side elevation of Fig. 7, with parts, 10 in section and parts omitted;

Fig. 9 is a section on the line 9-9 of Fig. 7;

Fig. 10 is a section on the line III-l0 of Fig. 8, with parts omitted and parts in elevation;

Fig. 11 is a section on the line li-|i of Fig.5; 15

Fig. 12 is a section on the line l2-l2 of Fig. 5;

Fig. 13 is a side elevation, on an enlarged scale, of the work support and associated parts at the lower left hand corner of Fig. 5;

Fig. 14 is a front elevation according to Fig. 13;

Figs. 15 and 16 are sections on the lines lS-IS" and Iii-I6 respectively of Fig. 13;

Fig, 17 is a side elevation of a spring member used in connection with the work guide;

Figs. 18, 19 and 20 are front elevations, on an 25 enlarged scale, with parts in section and parts omitted, of the feeding mechanism and associated parts, each of these figures showing the parts in difierent operative positions;

Figs. 21 and 22 are plans, on an enlarged scale, 0

' showing the insole guide in different operative positions;

Fig. 23 is a plan according to Fig. 21 with the presser foot and insole omitted;

Fig. 24 is an elevation of a detail of one form 3 of work support and work feeding mechanism;

Fig. 25 is a side elevation, with parts omitted,

vofa modified form of work support and work feeding mechanism;

Fig. 26 is a front elevation according to Fig. 25; 40 Fig. 27 is a plan of the strip gripper and associated parts according to Figs. 25 and 26;

Figs. 28 and 29 are elevations according to Fig. 25, with parts in section, showing the strip gripper in difierent operative positions; and 4.5

Fig. 30 is a fragmentary section, corresponding to Fig. 29, showing the relative positions during the sewing operation of the insole andthe modi-. fied form of strip according to Figs. 23 and 2C.

, According to one form of the invention, the in- 50 sole I has secured thereto, at opposite sides thereof, strips 3 of suitable material such as leather, or leather substitute such as paper compositions and the like, these strips being of relatively small size. for example, but without limi- 66 tation thereto, in the order of thick and from $5 to H" high. If desired, the insole may comprise a heel and shank stifi'ener which as shown is in the form of a thin sheet 4 of fiber board or the like cemented or otherwise secured to the main portion of the insole before applying the strips.

As illustrated by Figs.'1, 2 and 3, the strips are of rectangular cross-section and are placed edgewise against the insole and are sewed thereto by lines of stitching I, the stitches 1 of which preferably pass through the insole and from edge to edge through the strip. By this construction rigid abutments are formed for enabling an upper 9 to be drawn over a last ii and to be secured to the abutments by staples or other securing means II.

In the form of the invention illustrated by Figs. 28 and 20 the strips 3 are inclined inwardly from the edges of the insole, which construction may be desirable to facilitate the stapling operation when employing certain forms of stapling instrumentalities. For this purpose the edges 8 of the strips contacting with the insole surface are beveled. The strips may be held normally to the insole during the sewing operation and when sewed the tenstion of the stitches acts to draw the strips into their inclined positions illustrated.

Before the upper is worked into lasted position and secured to. the strips 3 forming the insole rib, for example by staples or the like, cement may be applied to the portion of the insole between its edges and the strips 3, or to the corresponding portions of the uppers, or both, the staples holding the uppers in place until the cement dries. This cementing operation may be facilitated, if desired, by subjecting to pressure that portion of the uppers which overlaps the insole. After the uppers are cemented in position, as indicated in Figs. 3 and 3A, the strips 3 and excess portions of the uppers may be severed by a trimming operation, leaving the shoe in the condition illustrated by Fig. 4 preparatory to applying the sole. The method of utilizing my novel insole may be substantially as disclosed in United States Letters Patent No. 1,932,545, granted October 31, 1933, upon an application filed in the name of George Goddu.

It will be observed that the stitches passing through the strips edgewise, being under tension and of considerable diameter relative to the thickness of the strips, draw the latter tightly against the insole to form a substantially rigid abutment, which eliminates all substantial tendency of the abutment to bend or tilt during the operation of applying the uppers. Thus is avoided the common defect of prior constructions.

It will also be understood that the invention is not limited to insoles or shoes, but comprehends any construction in which a strip is sewed edgewise to a sheet.

Figs. 5 to 24 of the drawings illustrate one form of the machine for performing the sewing operation.

As illustrated, this machine comprises a frame having a base portion l5 integrally formed with a vertical standard II, the upper end of which latteil'.is integrally formed with a horizontal arm At the forward end of the arm I! is shown an oscillating head 2| in which is mounted a vertically reciprocatory bar 23 carrying an awl 25 and a second reciprocatory bar 21 carrying a presser foot 2!. At the lower portion of the machine the base li carries a fixed bracket 3| in which is mounted a vertically reciprocatory bar 32 carrying a needle 35. A second fixed bracket 31 at this portion of the machine carries a strip guide plate 39 and a mechanism comprising an insole guide roller 4|. At this portion of the machine is also mounted a work support, generally indicated (Fig. 5) at 43, which oscillates in phase with the head 2| so as to maintain the support in substantially fixed relation to the awl and presser foot.

g The oscillatory head 2|, which carries the awl and presser foot, as shown has integrally formed therewith a shaft 45 which is mounted for oscillation in the upper horizontal arm I! of the frame of the machine. The drive shaft 41 for the machine extends through and at its forward end is Journaled in the shaft 45. At its rearward end it is journaled at l! in the frame of the machine, and is provided with a belt.pulley II so that it may be driven by power.

As shown, interiorly of the standard I! is a lever 53 fulcrumed on a pin 55 (Fig. 5), the upper end 51 of the lever being bifurcated and cooperating with a cam 59 on the shaft 41 so that when the latter is rotated the lever will be oscillated. The lower bifurcated end SI of the lever 88 embraces a pin 63 carried at the upper end of an arm 65 which is fixed to an oscillatory shaft 8'! Journaled in the base of the machine, as illustrated in Figs. 6 and 11. The outer end of the pin 63 is embraced by the bifurcated end 89 of an arm 1| which is fixed to the rearward end of the shaft 45 which carries the oscillating head 2|.-as a result of which when the shaft 41 is rotated the head 2| will be oscillated.

Referring particularly to Figs. 5, 7 and 8, the awl bar 22, which is mounted for reciprocation in the oscillating head 2|, has fixed to it the laterally projecting pin 1.! which is connected by a link 15 to a crank pin ll laterally projecting from a crank 19 on the front end of the shaft 41 so that when the latter is rotated the awl bar will be reciprocated in the oscillating head 2|.

The presser foot bar 21, which also is mounted for reciprocation in the oscillating head 2|, at its upper end has fixed thereto a collar 8| serving as one abutment for a helical compression spring 82, the other abutment '5 of which is fixedly carried by the oscillating head 2|. The spring 83 operates to urge the presser foot 29 toward the work. For holding the presser foot in permanently raised position at the will of the operator a lever 31 pivoted to the arm I! at I! is provided. The right hand end of the lever ll, as viewed in Fig. 5, has attached thereto a link, cord, wire, or the like 9| which may be pulled downward by means of a foot pedal or the like (not shown) so as to raise the left hand end of the lever to cause a projection 83 thereon to engage the collar Bi and raise the presser foot bar.

As illustrated in Fig. 9, for reciprocating the presser foot bar, the latter has siidably mounted thereon a block 05 to which is pivotally mounted at 81 a jaw 09 adapted to clamp the block to the presser foot bar. The law 09 is operatively connected, by means of a toggle strut I to a lever ill pivoted at I between a pair of arms ill carried by the block it, between which arms the toggle strut and the jaw I! are also positioned.

The lever I" has a wiping contact, as shown,

with a finger Ill fixedly carried by a rock shaft III, which latter is supported by the pintles ||3 carried by the opposite side walls H! of the head 2|. As'shown (Fig. 8), therockahaft isprovided with an arm II1 connected at its outer end by a link "9 to a pin I2I mounted in a block I23 fixedly carried by the reciprocating awl bar 23. By this construction when the awl bar moves upward the finger I09 is caused to wipe against the lever I03 and thus through the toggle strut IOI force the clamping member 99 against the presser foot bar 21 which locks the block 95 to the presser foot bar and causes upward movement thereof. Upon downward movement of the awl bar the clamping member 99 is released from the presser foot bar, and the latter descends due to the action of the helical compression spring 83. By reason of this construction the presser foot is given a constant lift relative to the work, and automatically compensates for work of different thicknesses.

As illustrated, for reciprocating the needle bar 33 which, as hereinbefore mentioned, is reciprocally mounted in the bracket 3| fixedly carried by the base of the machine, the drive shaft 41 is provided with an eccentric I25 which operates an eccentric rod I21 connected at its lower end to the crank pin I29 adjustably mounted on the end of a crank I3I fixedly secured to a rock shaft I33 journaled in the base of the machine (Figs. 5, 6, 11 and 13). At its forward end the rock shaft I 33 is provided with an ofiset crank arm I35 (Fig. 6) which at its outer end carries a crank pin I31 on which is pivotally mounted the lower end of a connecting rod I39 (Figs. 5, 6 and 13), the upper end of which connecting rod is pivotally connected to a pin I4I fixedly secured to and laterally projecting from the needle bar 33. By this construction when the shaft 41 is rotated the needle bar will be reciprocated.

As shown, the oscillating shaft 61 (Figs. 5, 6, 11, 13 and 14) at its forward end is provided with a crank arm I43, which latter at its free end has a forwardly projecting portion I45, and on the end of the latter is a vertically projecting arm I41 which carries the work support.

As shown (Figs. 13, 14, 18, 19, .20, 23 and 24) the work support 43 comprises a bar I49 secured by a bolt I5I to the upper end of the oscillatory arm I41. Integrally formed with the upper end of the bar is a laterally projecting V-shaped bracket the side members I53 of which have upwardly projecting studs I55 on which are mounted V-edged rollers, the upper surfaces I51 of the rollers being substantially horizontal at their highest portions so as to form a support for the insole or other sheet, while the lower surfaces I59 of the rollers are substantially vertical at their highest portions to form between them a notch for guiding the strip. The upper edge of the V-shaped bracket as shown is flattened to provide a seat I 6| (Fig. 24) for the bottom edge of the strip, and this portion of the bracket is provided with an elongated slot I63 to permit passage of the awl and needle. As shown, the work engaging portion I65 of the presser foot 29 is provided with a slot I61 in registry with the slot I63 in the work support for permitting passage of the awl and needle. The strip guide plate 39 carried by the fixed bracket 31 (Figs. 5, 13 and 16) is provided with a notch I69 of approximately the same dimensions as the space between the two rollers at the upper portion of the work support. The strip passes through this notch, and the latter serves to guide it to the space between the rollers.

The roller M for guiding the insole in the present embodiment of the invention is operatively carried by the vertical fixed bracket 31. As

shown (Fig. 16), the bracket at its upper end is provided with the spaced, upstanding portions "I which are formed at their upper ends to provide dove-tail grooves I13 in which is slidably mounted a plate I10, the latter at its lower side having a portion I11 to fit these grooves. The plate may be clamped in adjusted position rela-.- tive to the bracket 31 by means of a bolt I19, this bolt also passing through the slotted opening I8I in the plate 39 and serving also to hold the plate in adjusted position relative to the bracket. Tightening the bolt I19 causes the portions I1I to spring toward each other sufilciently to cause the grooves I13 to bind against the corresponding portion I11 of the plate I15 to hold the plate in adjusted position.

As illustrated, the plate I 15 is provided with a stud I83 (Fig. 15) on which is mounted a lever I 85 (Fig. 22) having a handle portion I81. Pivoted to a stud I89 carried by the left hand end of the lever I85 is an arm I9I, the outer end of which arm carries a stud I93 on which is rotatably mounted the roller 4|. At the under side of the roller the stud I93 is provided with a projectionl95 which enters a longitudinally extending slot I91 in the plate I15. The arm I9I at the right hand side of the stud I 89, as viewed in Figs. 21 and 22, is provided with an extension forming a V-shaped opening having the sides I99 and 20I which cooperate with a projecting pim 202 which may be inserted in any of the series of holes 203 formed in the lever I85.

When the parts are in the position shown by Fig. 21, the side 20I of the V-shaped opening in the arm I 9| contacts with the pin 202. In this position of parts the roller M is at the extreme left hand end of its movement and will cause the strip to be spaced the minimum distance from the edge of the insole. When the handle I81 is moved by the operator into the position shown by Fig. 22, the side I99 of the V-shaped opening will engage with the pin, under which conditions the roller M will be moved to the right and space the strip farther from the edge of the insole. By inserting the pin in different holes 203 the travel of the roller 4| under the influence of the handle I81 may be varied, and this handle may be operated during the sewing operation to cause the strip to be placed at different distances from the edge of the insole at its different positions on the insole. When the roller is shifted, the strip gradually moves toward or away from the insole edge as the sewing operation continues due to the fact that the insole is held to the strip by the stitches and the awl or needle which may be in the work.

For adjusting the position of the stud I83, so as to vary the maximum and minimum distances the strip is spaced from the edge of the insole, the plate I15 at its outer end is provided with a slot 205 through which the lower reduced diameter portion 206 of the stud extends, as is clearly illustrated in Figs. 15, 21 and 22, which slot permits the stud to be moved longitudinally of the plate and to be clamped in adjusted position by means of a nut 201. Conveniently between the head 209 of the stud and the lever I 831s positioned a split helical washer or spring 2| I, which latter acts to hold the lever frictionally in its several positions of adjustment.

Any suitable type of needle may be employed, as, for example, one of the hooked, spiral groove type, shown in applicant's Patent No. 703,941, July 1, 1902, for forming a chain stitch. When this type of needle is employed, a finger 2I3 hav- 'me an eye mks-me ons so) may be promachine. As shown-the upper end of the finger 2|! has pivotally motmted thereon a V-shaped cam follower block 225 cooperating with a V- shaped cam groove 221 formed on theperipheryofthecamdiskfll (l'igs.5,8and10) fixedly mounted on the forward end of the shaft ll. As illustrated, this cam groove has a laterally of!- ,set portion in and a slightly flattened portion III of angular extent A (Fig. 10), which portions conjointly act to give the lower end of the finger 212 a three dimensional oscillatory motion for mourns the thread about the end of the needle. lior holding the finger 2|! in operative relation to the cam groove 221, the rock'shaft 2|. has" fixed thereto an arm 222, the upper end of which armridesontheperipheryofacam222. This eamisfixedtotheshaftllandhasaprofileof such shape as will cause the cam follower block 22' to be maintained in the cam groove 22].

In employing the machine so far described for sewingthestriptotheinsole.thepresserfootis raised by manipulation of'the later s1 and the strip inserted through the notch I" in the plate 22, as indicated in Fig. 23. The insole is then insertedbeneaththepresserfcotwlthitsedge against the roller ll, as indicated in Fig. 21, and the presser foot is then released and the machine placed in operation. Preferably the sewing oi thestripisstartcdatthetoeenhoftheinsole, and, when the shank portion thereof is reached, ifthestripistobesewedfartherfromtheinsole edge'at that portion than at the toe portion the handle I" is thrown into the position shown by Fig. 22 to retract the roller ll.

The operation of the feeding of the strip and sheet may be best understood from Figs. 18, 19 and 20. When the parts are in the position shown'by Fig. 18 the awl 2| descends and perforates the insole and strip. The arm I" and head 2i then oscillate to move, to the left a distance of one stitch, those parts which are carried thereby adjacent the work. This movement places the awi in alignment with the needle, as

shown in Fig. 19, andduring this movement, the insole and strip being gripped between the presser foot I and the V-shaped head and rollers of the work support. and the awl being in the work, the insole and strip are moved to the left a distance of one stitch. The awl is then withdrawn and the needle 2! passed through the awi hole, as shown in Fig. 20, whereupon the presser foot is raised torelease the work, and the head 2i and arm ill oscillate to the right again to bring the machine parts into their initial position shown by Fig. 18. The thread looper 2 wraps thethread about the needle when the parts are in the position shown by Fig. 20, whereupon the needle descends at approximately the end of the return stroke of the arm I" and head 2| and, with the particular form of needle referred to, pulls a loop of thread through the work.

. Conveniently provision is made for varying the degree of oscillation of the head 2! and'arm I" soastovarythelengthofthestitchea'Asfllusetrated,forthispurposetheleverl2(l'igs.5and

221 for the lever about the Inn 2", may be pro-' videdforholdingtheleverluinitsadlustedpositions. As wilLbe obvious, shifting the position ofthe lever 224 varies thedegreeofoscilia- 'tionoithepinllandhencethedegreeofoscillationoftheshaftilcarryingthearmlland file iiegree'of oscillationoftheshaitli-carrying thehead2i.

lnl'iu.2fito28isillustratedamodifiedform of work gripping mechanism which isparticulariy useful in cases where relatively high strips 2 are employed, say those exceeding 56 in height. According to this form of the invention, the strip is positively gripped to the work support during the feeding movement thereof in one direction and released during the return stroke. As shown, the arm I" carries a work support in the form of an angle bracket having a vertical leg 22! attached to'the arm, and a horisontal la 2 carried by, the leg 22!. At the side of the le 22! is integrally carried a bracket 242 having the ears 2 between which is placed the base portion 2" of a clamping finger 2, this base portion being pivotally mounted on a pin Ill carried by the ears 2. Conveniently for limiting the throw of the finger 2 in one direction, the base portion 2" of the finger is provided with a fiattened portion 252 which cooperates with an-adjustable screw pin 2" carried by the bracket 2". As shown, the upper horizontal leg 2 of the work support is provided with an upstanding lug 251 positioned at one side of the slot Ill formed in the worksupport for permitting passage of the awl and needle. At the opposite side of the slot the finger 242 has an upstanding portion 2". Normally the presser foot I" when the work is not inserted will rest upon the upper edge of the upstanding lug 251 on the work support, as shown inI'ig. 25. Whenastripiandinsole I arcinserted with the presser foot in raised position, as shown in Fig. 28, the sheet will rest upon the upper end of the upstanding portion 26] of the clamping finger 242. When the presser foot is lowered to engage the'work, as shown in Fig. 29, the presser foot causes the upstanding portion 2" of the finger to be pressed downward to cause the finger to swing about its pin 2" to clamp the strip between the upstanding portions 2" and 2". During the operation of the machine, when the arm 41 and presser foot 22 move in one direction to feed the work, with the preset foot bearingagainsttheuppersideoi'theinsole,both the strip and the insole are securely clamped to move with the presser foot and work support. During the return stroke the presser foot is in its raised position, as shown in Fig. 28, and both the insole and strip are released from the work support and are held by the needle which at that time engages the work.

The relative position of the insole and strip 2 during the sewing operation will be understood from Figs. 21, 22, 23 and 29, care being taken when employing -the beveled-edge strip according to Fig. 20 to insert the strip with its beveled edge upward and facing the median line of the insole, aslndicated in Fig. 30, whether employing limited to the use of the particular type of needle 2,149,450 the modification of the machine according to Fig. 24 or Fig. .30.

It will be understood that the invention is not referred to or to a chain stitch machine, and that wide deviations may be made from the forms of the invention herein illustrated and described without departing from the spirit of the invention. I

Having thus described the invention, what I claim as new and desire to secure by Letters Patent is:

1. A machine for sewing strips to sheet material having, in combination, means for presenting the strip edgewise to the sheet, stitch forming mechanism operative to pass stitches through the sheet and from edge to edge through the strip for securing them together, means for feeding the sheet and strip relative to said stitch forming mechanism comprising means for presenting the strip edgewise to said mechanism, and means operating upon the sheet for positioning it relative to said stitch forming mechanism for causing the strip to be sewed to the sheet in predetermined spaced relation to the edge of the sheet, the last mentioned means having provision for varying the spacing of the strip from the edge of the sheet during the sewing operation.

2. A machine for sewing strips to sheet material having, in combination, stitch forming mechanism, means for presenting the strip edgewise to the sheet comprising a support for the strip and sheet and a cooperating presser member for holding them in operative relation to said support, means for moving said support and presser member in one direction from an initial position to a flnal position for feeding the sheet and strip a distance of one stitch and then releasing said presser member and returning it and said support to said initial position, said stitch forming mechanism being operative to hold said sheet and strip in said final position substantially means for presenting the strip edgewise to said sheet comprising a support for the sheet and strip and a cooperating presser member for holding them in operative relation to said support, means for passing said awl through the sheet and edgewise through the strip, means for moving said awl while in the sheet and strip, and said support and presser member, for feeding the strip and sheet the distance of one stitch, and for withdrawing said awl and passing said needle into the awl holeand maintaining said needle in said hole wlritle returning said presser member and supp0 ,,z,

4. A machine for sewing strips to sheet material having, in combination, means for presenting the strip edgewise to said sheet, stitch forming mechanism operative to pass stitches through the sheet and from edge to edge through said strip for securing them together, feeding means for said strip comprising a movable support having means for engaging the sides and an edge of said strip, and a presser member for holding the sheet in operative relation to the other edge of said strip.

5. A machine for sewing strips to sheet material having, in combination, means for presenting the strip edgewise to said sheet, stitch forming mechanism operative to pass stitches through the sheet and from edge to edge through said strip for securing them together, feeding means for said strip comprising a support for one edge of said strip having rollers for engaging the sides of the strip and adapted to support the sheet substantially in contact with the opposite edge of the strip, a presser device, and means for causing the latter intermittently to press the sheet against said rollers.

6. A machine for sewing strips to sheet material having, in combination, means for presenting the strip edgewise to the sheet, stitch forming mechanism operative to sew the sheet to the strip, and work feeding means comprising a movable intermittent grip device for engaging the sides of the strip.

'7. A machine for sewing strips to sheet material havirg, in combination, means for presenting the strip edgewise to the sheet, stitch forming mechanism operative to sew the sheet to the strip, work feeding means comprising a movable intermittent grip device for engaging the sides of the strip, and a presser device for the work cooperating with said grip device for operating it.

8. A machine for sewing strips to sheet material having, in combination, means for presenting the strip edgewise to saidsheet, stitch forming mechanism operative to sew the sheet to the strip, work feeding means comprising a movable intermittent grip device for engaging the sides of the strip, said grip device having an operating member adapted to engage the sheet, and a presser foot for engagng the sheet and operating said grip device.

FRANK W. MERRICK.

I CERTIFICATE OF comcnon. Patent no.- 2,116,156; M r 7, 9,59- 7 FRANK w. mnxcx. v

It 1: whereby certified that error appcnra in the printed apecificdtion or the above numbered potent requiring correction as follows: Pogo 1, first column, lino 52, after "aoctiozia" inaort through the shoe and last, corresponding to-thc acctioncjcndthat the Quid Letters Patent should be rec'd with thin correction therein that the some may conform to the record of tho case in the Patent Officc. I I

Signed and .soaled this 26th day of Septembcr A..D,. 1959.

Hoary Van Arsdale (Seal) Acting Commissioner of Patents. 

